5.1-5.3 Quiz (Midterm) Online Version

Identify the 'b' value: y = 16x² -8x -24

• 16

• -8

• 8

• -24

What is the equation for the axis of symmetry?

• y=3

• x=3

• x=5

• x=1

Find the y-intercept of f(x) = 2x² - 2x + 1

• 2

• -2

• 1

• -1

What is the vertex of the quadratic function:
y = x² - 6x + 11?

• (3,2)

• (-3,-2)

• (-3,2)

• (3,-2)

Determine the vertex of the parabola:
y = 5x² - 20x + 13

• (5, -7)

• (-2, -7)

• (2, -7)

• (-7, -2)

Which of the following is the correct equation for the given graph?

• f(x) = (x - 2)² - 1

• f(x) = (x + 2)² - 1

• f(x) = -(x + 2)² - 1

• f(x) = -(x - 2)² - 1

What is the formula to find the vertex of a parabola?

• x = -b/2

• x = -b

• x = -b / (2a)

• x = -b / 2

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• none of these

What are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

Identify the vertex and whether the graph opens up or down.

• (-1, 4); opens up

• (-1, 4); opens down

• (1, 4); opens up

• (1, 4); opens down